Finding the Fourth Proportional to 118,214.40, 177,337.80 and 39,320.40
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Solution
The fourth proportional to 118,214.40, 177,337.80 and 39,320.40 is: 58,985.99
Step by Step Solution
- Step 1: Write the proportion equation
118,214.40 : 177,337.80 = 39,320.40 : x - Step 2: Convert to fraction form
118,214.40/177,337.80 = 39,320.40/x - Step 3: Cross multiply
118,214.40x = 177,337.80 × 39,320.40 - Step 4: Simplify right side
118,214.40x = 6,972,993,231.12 - Step 5: Solve for x
x = 6,972,993,231.12/118,214.40 - Step 6: Final answer
x = 58,985.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.